闻鸡起舞蔡徐坤

Meaning

"Don't be too American as a person" (做人不要太美国) means "don't be too shameless or meddle too much in others' affairs." From the US-China trade war to Hong Kong unrest, America has violated treaties and unfairly labeled China (like "war is China's normal state") while interfering in internal affairs, drawing strong criticism from Chinese people. This phrase expressing anger at American behavior became popular online.